I did start getting ultrasounds after removal, and found that I had started developing ovarian cysts. I have been worried about PCOS, because many of the symptoms I have faced are similar to what other women are experiencing on this board, and may explain why it has taken me so long to feel better after removal.
I just had my third ultrasound last week (My last one was in November, and before that, sometime last summer) and the cysts are gone! I have been gradually starting to feel better, and I wonder if this could be the cause?
Anyways -- just so you know, I truly believe that Mirena can cause cysts/growths, and if you have the means to get it checked out, it could be a good way to monitor your progress.